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53478190 = 255990641
BaseRepresentation
bin1100110000000…
…0001100101110
310201121222021201
43030000030232
5102142300230
65150120114
71216362043
oct314001456
9121558251
1053478190
1128206a57
1215ab003a
13b1055cc
1471611ca
154a655ca
hex330032e

53478190 has 16 divisors (see below), whose sum is σ = 97893360. Its totient is φ = 21028480.

The previous prime is 53478163. The next prime is 53478199. The reversal of 53478190 is 9187435.

It is a super-2 number, since 2×534781902 = 5719833611352200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53478199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44731 + ... + 45910.

It is an arithmetic number, because the mean of its divisors is an integer number (6118335).

Almost surely, 253478190 is an apocalyptic number.

53478190 is a deficient number, since it is larger than the sum of its proper divisors (44415170).

53478190 is a wasteful number, since it uses less digits than its factorization.

53478190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90707.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 53478190 is about 7312.8783662796. The cubic root of 53478190 is about 376.7548918389.

The spelling of 53478190 in words is "fifty-three million, four hundred seventy-eight thousand, one hundred ninety".

Divisors: 1 2 5 10 59 118 295 590 90641 181282 453205 906410 5347819 10695638 26739095 53478190